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WO/1987/000581A1 |
A fuel injection solenoid driver circuit (160) controllably connects and disconnects a solenoid coil (168) to and from a storage capacitor (40) to effect operation of the coil (168). Precise control of the timing and duration of coil (16...
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WO/1986/005932A1 |
An integrated circuit comprising a series pass transistor (20) for sourcing current from the positive side of a battery to an inductive load (18) includes integrated circuitry for providing a direct current conduction path between ground...
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WO/1986/005330A1 |
A circuit arrangement for connecting a plurality of users to a supply network which makes it possible to select one of the users (master) and also puts into or out of operation the others (slaves) by means of its main switch.
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WO/1986/002504A1 |
Vending machine power switching apparatus (20) in which a single power switching circuit (29) is associated with a plurality of load selecting relay switches (22, 23, 24) and a switching control circuit (25), in which the control circuit...
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WO/1986/001332A1 |
Control device for the electromagnet coil of a switching apparatus, comprising a MOS transistor switch (12) in series with the coil (B), a double alternation rectifier (11) supplying the coil, a signal regenerator having a closed-loop co...
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WO/1985/000924A1 |
An apparatus (10) for controllably operating at least one solenoid coil (12) in a battery operated system. The mean voltage applied to the coil (12) is controlled in response to at least the battery voltage, facilitating the use of vario...
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WO/1984/002808A1 |
This invention pertains to an apparatus (10) for monitoring and protecting a plurality of contactor coils (14A-E) and coil drivers (16A-E) from damage owing to short circuits, and preventing the concurrent energization of more than a pre...
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WO/1983/000771A1 |
A driver circuit for inductive loads is desired which is capable of delivering large amounts of average current but has only minimal power dissipation requirements, is self-protecting and suitable for being embodied in monolithic integra...
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WO/1982/002794A1 |
A driver circuit for inductive load devices is desired which can provide multi-level current to the load, is T2L compatible, can be provided at a reduced component cost and has on chip thermal protection. A single monolithic integrated c...
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WO/1982/002115A1 |
Electronic device for the energization of an electromagnetic element, particularly a troke-coil or a coil of an electromagnetic switching apparatus having a magnetic circuit with a coil, a yoke and an armature. A comparator (5) receives ...
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JP2024048420A |
An object of the present invention is to provide a relay system that can quickly deal with the occurrence of icing on the contacts while suppressing a decrease in the life of the contacts. A relay system (100) includes a relay device (10...
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JP2024047779A |
An object of the present invention is to suitably suppress freezing of contacts of a mechanical relay. [Solution] A relay dehumidifier 1 includes a relay housing 22 that accommodates a mechanical relay main body 21 and communicates with ...
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JP2024041279A |
An object of the present invention is to provide a determination system that can further improve the determination of an abnormality in an electromagnetic relay. A determination system 10 moves a first fixed terminal 24, a movable contac...
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JP2024037163A |
An object of the present invention is to provide a relay device and a safety switch device that are compact, highly cost-effective, and in which all switching paths are safe. [Solution] Regarding a relay device (1), input terminals (2.1 ...
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JP7437189B2 |
To provide a test device capable of predicting deterioration of a contact relay with high accuracy, and a deterioration determination method for the contact relay.The present invention relates to a test device comprising: a plurality of ...
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JP7436502B2 |
Disclosed is a method for closing the contacts of an electrical switching device during a switch-on process, whereinfor a fixed first time period, the first time period and the first voltage being selected in such a way that the armature...
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JP7435644B2 |
To provide a technique which can effectively prevent relay contact failure caused by adhesion of a siloxane-derived insulator to a contact.A relay control device 6 controls the operation of a relay circuit 5 which is airtightly housed in...
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JP3245692U |
The present invention provides a protection mechanism and a simulation detection system for intelligent substation relay protection, which allows employees to place the simulation detection device at an appropriate angle and is easy to u...
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JP2024021361A |
The present invention provides a relay control device that suppresses freezing of electrical contacts of a relay and can resolve the freezing problem in a short time even if the electrical contacts actually freeze. When the temperature d...
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JP2024021362A |
The present invention provides a relay control device that suppresses freezing of electrical contacts of a relay and can resolve the freezing problem in a short time even if the electrical contacts actually freeze. When the temperature d...
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JP2024017829A |
An object of the present invention is to provide an electromagnet device that can switch the voltage applied to an electromagnetic coil from an operating voltage to a holding voltage with a simple configuration. An electromagnet device d...
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JP2024015606A |
An object of the present invention is to suppress the opening/closing operation of a latching relay during failure diagnosis. [Solution] A relay control device that controls a latching relay having a closing side coil and an opening side...
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JP7427163B2 |
A vehicle anomaly detection device is used in a vehicle power system. The vehicle anomaly detection device includes a target wiring portion and an anomaly detection unit. The target wiring portion constitutes at least a portion of the in...
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JP7423773B2 |
A contact monitoring device for monitoring an electrical contact having a first contact state and a second contact state includes: an oscillator circuit for generating an excitation signal; a coupler including a signal input and a signal...
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JP7420656B2 |
To provide a relay output control device improving the safety.In a relay output control device 1, a control unit 10 determines failure based on contact checking signals OUTRAS and OUTRBS of a contact of an output relay OUTR input from a ...
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JP7418245B2 |
A current differential relay apparatus includes a first relay and a second relay. The first relay calculates a first differential current and a first suppression current, using a first current and a second current, and performs a ratio d...
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JP7411482B2 |
As a relay device equipped with a relay having a mechanical contact point, the relay device allows a reset operation of a coefficient value not to be required when replacing a relay, and allows to accurately determine a replacement timin...
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JP7403073B2 |
To perform failure detection with a small circuit configuration.A power cut-off device 1 is capable of failure determination for a positive potential switch 8 and a negative potential switch 9. A control circuit 11 directs the positive p...
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JP2023178969A |
To provide a rack power distribution unit (RPDU) that automatically and safely switches power to one or more receptacles.An RPDU includes one or more processors utilizing control algorithms that manage bistable relays so that in-rush cur...
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JP7397984B2 |
In a case where a load current flows in an energized state where a power supply is connected to a load, it is assumed that a measured voltage fluctuates due to a voltage drop caused by contact resistance of a relay contact, and thus the ...
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JP2023176617A |
To predict the degradation of a contact point relay with high accuracy even when having the one-point make type contact point relay.A test device comprises: a make type first contact point relay 31 which has only one relay contact point;...
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JP7392755B2 |
A sticking diagnosis apparatus for diagnosing a presence of sticking at a positive-electrode relay and at a negative-electrode relay, the sticking diagnosis apparatus including: an obtaining section that obtains, a first voltage value th...
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JP7392756B2 |
A relay welding diagnosing apparatus can lower a risk of erroneous diagnosis while preventing energy of a battery from being discharged uselessly. The relay welding diagnosing apparatus including a positive electrode side relay, a negati...
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JP2023169052A |
To provide an electromagnetic coil drive circuit, a server driver, and a servo system that can drive a clutch brake in a short time and secure a necessary excitation current without having two voltage systems.An electromagnetic coil driv...
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JP7385612B2 |
To reduce the restoration time of a failure detection relay to which a protective circuit is connected in parallel.A relay circuit 1 comprises: a failure detection relay 10 that is connected between output terminals of a drive circuit 3 ...
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JP2023165647A |
To provide a safety switching device, in particular for reliable switching-on of an electrical load.During a starting process, functionality of, e.g., two not forcibly driven changeover switches (60, 70), particularly their normally clos...
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JP7380820B1 |
An object of the present invention is to provide an abnormality detection device capable of detecting an abnormality in an electromagnetic contactor, thereby making it possible to take appropriate measures when an abnormality is detected...
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JP7380712B2 |
A switching module includes mechanical relays, semiconductor switches, voltage detectors to detect an input voltage to a power converter, and a controller. When the controller determines that the waveform of the input voltage is abnormal...
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JP2023543783A |
A relay control device according to the present invention includes a contact connected between a positive electrode of a battery and a load; and a coil connected between a relay power terminal and ground to move the contact to a closed p...
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JP2023152493A |
To provide a power supply control device, a power supply control method, and a computer program for detecting relay contact abnormality.A power supply control device 11 disclosed herein controls supply of power via a relay contact 30. Wh...
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JP2023151057A |
To provide a relay life prediction device and a relay life prediction system that predicts a lifespan of relays.A prediction unit 602 of a relay life prediction device 60 in a relay life prediction system predicts a service life of a rel...
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JP2023151056A |
To provide a relay abnormality determination device and a system capable of determining abnormality on multiple relays that are connected in series with a drive unit that turns on and off the multiple relays, and which are connected to e...
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JP2023151972A |
To provide a control device that can control a plurality of relays while preventing ripple of a power supply.A control device comprises: an acquisition unit that acquires the number of relays to be driven having the same specification; a...
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JP7360037B2 |
To prevent malfunction of the latching relay due to vibration or shock during use with a simple configuration.A relay device (20) includes an acceleration sensor (11) that detects the acceleration of the relay device (20), latching relay...
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JP2023541631A |
A method and apparatus for failure mode detection in a contactor is disclosed. In certain embodiments, a method for failure mode detection in a contactor includes maintaining a contactor command signal in an open state and connecting the...
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JP3243998U |
An object of the present invention is to provide a locking mechanism for preventing erroneous operation of an arc extinguishing coil, which is highly safe, allows the position of a closing relay to be adjusted, is easy to use, and is eas...
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JP2023136163A |
To provide a relay derive controller capable of driving a relay, while suppressing an increase in cost and scale (size and weight).A relay derive controller for connecting a battery installed in a vehicle with an external power supply co...
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JP7349475B2 |
A relay control circuit is configured to control opening and closing of a contact of a non-latch relay that includes the contact and a coil configured to operate the contact. The relay control circuit includes: a low-voltage power supply...
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JP7347006B2 |
A protective device includes a relay having a contact that opens and closes a current path of a cell, and a control device that controls the relay. The control device executes a reduction processing of reducing a contact resistance of th...
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JP2023130247A |
To enable abnormality of equipment connected to a relay to be sensed without using information acquired from an equipment side, thereby enabling the abnormality of the equipment to be indirectly predicted.An abnormality sensing device co...
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